Getting Ready – Final Preparation
Here are some important tips to keep in mind to ensure that you are ready for this rewarding exam: Tools for Final Preparation This section lists some information about the available tools and how to access them.
Category Archives: SD-Access Architecture
Priority Queuing – WAN Availability and QoS
Priority queuing (PQ) is a queuing method that establishes four interface output queues that serve different priority levels: high, medium, default, and low. Unfortunately, PQ can starve other queues if too much data is in one queue because higher-priority queues must be emptied before lower-priority queues. Custom Queuing Custom queuing (CQ) uses up to 16… Read More »
Overlay – SD-Access Design
The overlay network is a logical network built on top of the underlay in order to create virtualized networks. These virtualized networks are created in the SD-Access fabric by encapsulating user traffic in the overlay networks using IP packets on the boundary edge switches. The SD-Access fabric overlay has three main components: LISP simplifies routing… Read More »
Control Plane Design – SD-Access Design
The database for identifying endpoints is the responsibility of the fabric control plane nodes in the SD-Access fabric. This is an important function for the fabric to operate well. If the control plane node were down for whatever reason, fabric endpoints would have to rely on the local database information for connectivity, which might or… Read More »
SD-WAN Architecture – SD-WAN Design
Cisco SD-WAN is an enterprise-grade WAN architecture overlay that enables digital and cloud transformation for enterprises. It fully integrates routing, security, centralized policy, and orchestration into large-scale networks. It is a multi-tenant, cloud-delivered, highly automated, secure, scalable, and application-aware solution with rich analytics. The Cisco SD-WAN technology addresses the problems and challenges of common WAN… Read More »
Onboarding and Provisioning – SD-WAN Design
vEdge devices can be onboarded via two methods: Zero Touch Provisioning (ZTP) or manual configuration. ZTP does require some initial steps on Cisco’s Plug and Play (PnP) Connect portal: Step 1. Use the PnP Connect portal, which is linked to Cisco Commerce Workspace (CCW), to place an order for SD-WAN devices with PnP licenses. Step… Read More »
SD-WAN Design Considerations – SD-WAN Design
An enterprise designer should consider design options in deploying SD-WAN components to account for scalability, high availability, security, and QoS. Control Plane Design SD-WAN vManage, vSmart, and vBond can be deployed in one of three cloud-delivered control methods. The design option chosen depends on the company’s IT policies on network infrastructure. A company might want… Read More »
vEdge DHCP Server – SD-WAN Design
vEdge routers can be configured to provide DHCP server functionality to allow for host IP address assignments to be made directly from a vEdge device on a customer site. DHCP servers are configurable for the service side interface. DHCP relay (IP helper) functionality is also supported for forwarding requests from the service side network to… Read More »
Policies – SD-WAN Design
Policies can be configured to influence the flow of traffic in the overlay network. Policies can be control plane or data plane policies, and they can be configured centrally on the vSmart controller or locally on the vEdge routers. Centralized control policies operate on the routing and TLOC information and allow for customization of routing… Read More »
Benefits of Cisco SD-WAN Cloud OnRamp – SD-WAN Design
Benefits of Cisco SD-WAN Cloud OnRamp include Cisco SD-WAN Cloud OnRamp Solutions Cisco SD-WAN Cloud OnRamp solutions include Cisco SD-WAN Cloud OnRamp for Multicloud automates and seamlessly connects enterprise networks to the leading public clouds such as Amazon Web Services (AWS), Google Cloud, and Microsoft Azure and other Infrastructure-as-a-Service (IaaS) providers with site-to-cloud connectivity (see… Read More »